Quote Originally Posted by steveo View Post
yeah it basically does (pseudocode)

if(MAP > BARO) then BARO = MAP

i had patched that routine out already, to the best of my knowledge, though:
If I turn the patch code off, the ECM then seems to initialize the BARO reading to current MAP reading before staring the engine. So it does do something, but somehow Baro still gets updated.

With patch on, the baro reading doesn't ever change (even if disconnecting the battery !?) unless it goes into the update routine. The "barometric equalizer" scalar in TunerPro doesn't appear to actually set that value in memory. Could the address somehow be off or something?

Sorry if all this is ignorant, I'm trying to kinda understand it.